Hello! In this tutorial, I will be showing you how to have mumfrey's macromod and Optifine going at the same time! First, you will need to download the optfine version of your choice(http://www.optifine.net/downloads ) and the liteloader version to go with it (http://www.liteloader.com/ ). Now, once you have those downloaded, run the optifine download. (For this version, I will be using optifine_1.7.10_HD_U_A4). This screen should pop up : Now, click install, and it should install and this should pop up: Next, you want to open liteloader installer, this screen should pop up: Now, you want to click extend form, and you should see the optifine version below. Select the version so it looks like this: Hit ok then this should pop up: Next start the launcher, pick that version, and it should be set up! Make sure you add your other mod, and then your ready! If there is anything wrong, please let me know below or ingame and I will try to help!